header{
    background-image:url(v2-b493c9cf934f1c246fc0544fa1472853_r.jpg);   
    color:white;
    width: 1600px;
    height: 990px;
    text-align: center;
    margin: 0 auto;
    
}
#title{
    display: inline-block;
    font-size: 64px;
    padding-top: 200px;
    width: 960px;
}
section{
    width:1600px;
    margin:0 auto;
}
#break1{
    width:1170px;
    height:200px;
}
#task1{
    width:1170px;
    height:420px;
    margin:0 auto;
}
#task1 div{
    float:right;
    width:470px;
    height:420px;
    color:black;
    font-size:35px;
    text-align: center;
    line-height: 420px;
    font-family: "Microsoft Yahei", sans-serif;
    background-color: rgba(0,0,255,0.2);
}
#task1 img{
    float:left;
    width:700px;
    height:420px;
}
#break2{
    width:1170px;
    height:50px;
}
#task2{
    width:1170px;
    height:420px;
    margin:0 auto;
}
#resources1{
    float:left;
    width:470px;
    height:420px;
    color:black;
    font-size:40px;
    font-family: "Microsoft Yahei", sans-serif;
    text-align: center;
    line-height: 420px;
    background-color: rgba(0,0,255,0.2);
}
#resources{
    float:right;
    font-size:15px;
    background-image: url(v2-dd3c112a24b3d49b6487b5d60bdd0ca4_r.jpg);
    width:700px;
    height:420px;
}
#resources a{
    display: flex;
    justify-content: center;
    align-content: center;
}
#task3{
    margin-top:200px;
    width: 1600px;
}
#task3title{
    text-align: center;
    font-family: "YouYuan",sans-serif;
    font-size: 60px;
    width: 1170px;
    margin: auto;
}
#fpara{
    font-family: "YouYuan",sans-serif;
    font-size: 25px;
    width: 700px;
    line-height: 40px;
    margin-top: 50px;
    margin-right: auto;
    margin-left: auto;
}
#spara{
    font-family: "YouYuan",sans-serif;
    font-size: 25px;
    width: 700px;
    line-height: 40px;
    margin-right: auto;
    margin-left: auto;
}
#task4{
    margin-top: 200px;
    width: 1600px;
}
#plan{
    margin: auto;
    width: 1170px;
    height: 750px;
}
#plantitle{
    text-align: center;
    width: 1170px;
    font-size: 60px;
    font-family: "Microsoft Yahei", sans-serif;
    margin: auto;
}
#plan img{
    width:100%;
    height: auto;
}
footer{
    margin-top: 300px;
    width: 1600px;
    height: 100px;
    background-color: black;
    text-align: center;
    color: rgb(90, 90, 90);
    font-size: 64px;
    
}